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man pages section 9: DDI and DKI Kernel Functions

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Updated: Thursday, June 13, 2019
 
 

ldi_strategy(9F)

Name

ldi_strategy - Device strategy request

Synopsis

#include <sys/sunldi.h>

int ldi_strategy(ldi_handle_t lh,  struct buf *bp);

Parameters

lh

Layered handle.

bp

Pointer to the buf(9S) structure.

Description

The ldi_strategy() function passes a strategy request to the device entry point for the device specified by the layered handle. This operation is supported for block devices.

Return Values

The ldi_strategy() function returns 0 if the strategy request has been passed on to the target device. Other possible return values are:

EINVAL

Invalid input parameters.

ENOTSUP

Operation is not supported for this device.

Once the request has been passed on to the target devices strategy entry point, any further errors will be reported by bioerror(9F) and biodone(9F). See the strategy(9E) entry point for more information.

Context

This function may be called from user or kernel context.